collapse

www.dimecitycycles.com

www.cognitomoto.com

https://www.townmoto.com/collections/vanson-leathers

www.speedmotoco.com

www.CITYLIMITMOTO.com

www.jadusmotorcycleparts.com

www.lostapostlejewelry.com

www.sparckmoto.com

www.pistonsociety.com


Author Topic: Need some schooling on this......  (Read 1363 times)

Offline Azbiker

  • Posts: 962
Need some schooling on this......
« on: Jan 13, 2012, 18:50:30 »
I took the best pictures I could. This is a SL250 engine that came off of my 73 XL250. The camshaft has some scratches/nicks on the top of (dont know what the part is called...Rocker roller?) So, seeing that, what should I expect from the engine or in other words what should I be looking at to replace? Or, is this anything to be concerned about?

Thanks for any input.

Offline Jewbacca

  • Posts: 1153
  • Therapy is expensive. Riding is cheap. You decide.
Re: Need some schooling on this......
« Reply #1 on: Jan 13, 2012, 19:36:32 »
It's called a cam lobe, it's what opens and closes the valves as the cam rotates. It looks (from what I can see in the pictures) that the hardened outer layer of metal is starting to deteriorate/break-down. Not exactly absolutely necessary to replace/repair it, but it would be a good idea to go ahead and do it since the engine's tore apart anyway. If the budget allows for it, I'd grab a new cam, if not, I'd get it welded and reground back to spec. For a 250 engine, I'd imagine they'd both cost about the same though. If you buy a new one, you can play around with the duration, lift, etc. suitable for any performance mods you're planning on doing. Good luck.
1979 Honda CB750K- Soon to be CB750K-SC Night-Ninja (SOLD)
http://www.dotheton.com/forum/index.php?topic=18771.0
1974 TX500A "Yamahonda" http://www.dotheton.com/forum/index.php?topic=66736.0"
1983 Honda CB650SC
http://www.dotheton.com/forum/index.php?topic=70532.new#new
Gives me a major cramp in my wedding tackle..." Fellow PNW Rocker Dave Simmons

Offline Azbiker

  • Posts: 962
Re: Need some schooling on this......
« Reply #2 on: Jan 13, 2012, 19:38:40 »
Thanks! I think I will just replace it then...to be safe. Thanks for the info.

Offline DrJ

  • Posts: 4224
Re: Need some schooling on this......
« Reply #3 on: Jan 13, 2012, 19:49:16 »
That wear looks really minor to me. I'd use it as is. Just change oil regularly.

Offline AlphaDogCustoms

  • DTT SUPPORTER
  • *
  • Posts: 3359
  • Science is true whether you believe in it or not.
    • Alpha Dog Customs
Re: Need some schooling on this......
« Reply #4 on: Jan 13, 2012, 20:27:54 »
Run it.
...every dump I take is original too, and it doesn't smell any better because of it's originality.

Alpha Dog Custom Cycles
Painting
Powdercoating
Custom Fabrication
Repairs
I'm so old, I even know what ignition points are.

Offline Azbiker

  • Posts: 962
Re: Need some schooling on this......
« Reply #5 on: Jan 13, 2012, 22:47:47 »
Cool...thanks for the input. Just wanted to make sure everything was okey-dokey.